state gov TNPSC Group 2/2A (தமிழ்நாடு) Mock Test 2024 General Knowledge Science Technology and Inventions
Consider the following events and arrange them in correct chronological order starting from the earliest to the last activity:
(I) Discovery of pi meson
(II) Discovery of Neutron
(III) Discovery of Electron
(IV) Discovery of Proton
Select the correct answer using the code given below:
1
I, III, IV, II
2
III, II, I, IV
3
III, IV, II, I
4
III, IV, I, II